Speaking of Strikeforce, their middleweight champ Jake Shields may not be sticking around after his next fight. As he told Graciemag:

When you talk about guys like Anderson Silva and St.-Pierre, the best in the world, obviously I fight want to fight them. I want to be the best in the world and to be the best you have to beat the best…Now I’m focused on Dan Henderson for this fight and after that my contract with Strikeforce ends. I’ll talk with Strikeforce and the UFC to find out which one I will work for.

Even if Shields gets smashed by Hendo, he would still have a great deal of value to the UFC as a welterweight contender. And if he beats Henderson? There aren’t any more legitimate middleweight challenges in Strikeforce, and Jake’s homeboy Nick Diaz holds the welterweight belt, so moving back down isn’t an option. You can’t blame the guy for wanting to move on.